Supertech Titanium Retainer for Honda D Series Spring SPR-1003S

Crafted from titanium, this Supertech retainer is designed to work with the SPR-1003S valve spring. Titanium is chosen for its strength-to-weight ratio, making it a popular choice for performance engine builds where reducing mass is important. This part is specifically made for Honda D-series engines, helping to ensure a proper fit when you're rebuilding or upgrading your valvetrain.

Using titanium for retainers helps to keep reciprocating mass down, which can allow the engine to rev more freely. This retainer is a direct replacement for the stock part, but it's built with lighter, stronger material. It's a well-built component that's part of a system designed for engines that see spirited use.